000 02936nam a22004455i 4500
001 978-4-431-54219-3
003 DE-He213
005 20140220082926.0
007 cr nn 008mamaa
008 130125s2013 ja | s |||| 0|eng d
020 _a9784431542193
_9978-4-431-54219-3
024 7 _a10.1007/978-4-431-54219-3
_2doi
050 4 _aQB4
072 7 _aPG
_2bicssc
072 7 _aSCI004000
_2bisacsh
072 7 _aNAT033000
_2bisacsh
082 0 4 _a520
_223
100 1 _aYuasa, Takayuki.
_eauthor.
245 1 0 _aSuzaku Studies of White Dwarf Stars and the Galactic X-ray Background Emission
_h[electronic resource] /
_cby Takayuki Yuasa.
264 1 _aTokyo :
_bSpringer Japan :
_bImprint: Springer,
_c2013.
300 _aXV, 154 p. 81 illus., 32 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
505 0 _aReview of the Galactic X-ray Background Emission and White Dwarf Binaries -- Constructing an X-ray Model of Accreting White Dwarf Binaries -- Instrumentation -- Estimating the Masses of White Dwarfs in Magnetic Cataclysmic Variables -- Decomposing the Galactic Ridge X-ray Emission.
520 _aThis thesis presents a study of the origin of an apparently extended X-ray emission associated with the Galactic ridge. The study was carried out with broadband spectra obtained from mapping observations in the Galactic bulge region conducted in 2005–2010 by the Suzaku space X-ray observatory. The spectra were analyzed with a newly constructed X-ray spectral model of an accreting white dwarf binary that is one of the proposed candidate stars for the origin of the Galactic ridge emission in the higher energy band. Fitting of the observed Galactic ridge spectra with the model showed that there is another spectral component that fills the gap between the observed X-ray flux and the component expected from the accreting white dwarf spectral model in the lower energy band. This additional soft spectral component was nicely explained by an X-ray spectral model of normal stars. The result, together with previously reported high-resolution imaging results, strongly supports the idea that the Galactic ridge X-ray emission is an assembly of dim, discrete X-ray point sources.
650 0 _aPhysics.
650 1 4 _aPhysics.
650 2 4 _aAstronomy, Observations and Techniques.
650 2 4 _aMeasurement Science and Instrumentation.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9784431542186
830 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5053
856 4 0 _uhttp://dx.doi.org/10.1007/978-4-431-54219-3
912 _aZDB-2-PHA
999 _c99055
_d99055